javascript - 将对象项乘以某个随机值并作为对象返回

Question

我有一个包含如下对象的数组:

[
  {
    current_temperature: "16.75°C"
    name: "London"
  }
  ...
]

我需要将当前温度乘以某个值并以与上面相同的格式返回。

我试过如下但它不起作用

this.data.map(item => {
   let temp = item['current_temperature'];
   Object.assign(this.data, {'current_temperature': temp.split('\u00B0')[0] * 32});
});

Answer 1

试试这个:

const data = [
    {
       current_temperature: "16.75°C",
       name: "London"
    },
    {
        current_temperature: "10.75°C",
        name: "Tunis"
    }
 
]

const result = (multip) => data.map(res=> Object.assign({}, res, {current_temperature : res.current_temperature.split('\u00B0')[0] * multip +'°C'}));

console.log(result(10)) // multiplied by 10
console.log(result(32)) // multiplied by 32